Hadoop: start-dfs.sh permission denied

Question

I am installing Hadoop on my laptop. SSH works fine, but I cannot start hadoop.

munichong@GrindPad:~$ ssh localhost
Welcome to Ubuntu 12.10 (GNU/Linux 3.5.0         


        

Answer 1

Well I am now facing with this problem either, and before I got in this question, I use the method below.

1. sudo -s -H

use this code to login as root user

2. ssh localhost

login by using ssh (if you are just trying to use single node mode)

3. ./sbin/start-dfs.sh

./sbin/start-yarn.sh

"cd" to your Hadoop installation route then print that code to start the HDFS&MapRedude , then you won't face the permittion problem again.

I guess the cause of this problem :

I use the root user to init the Hadoop environment, so the several folders were create by root user, so that When I now using my own account like 'Jake', I don't have permit to start the service(During that time the system need to access the LOGS )